IfObject.md

typelab / conditions / IfObject

type IfObject<T, Then, Else> = _IfNotAnyOrNever<T, T extends object ? Then : Else, Else>;

Resolves to Then if the type T is object, otherwise resolves to Else.

Type Parameters

Type Parameter	Default type	Description
T	‐	The type to be checked.
Then	‐	The type to return if T is object.
Else	never	The type to return if T is not object. Defaults to never.

Returns

Then if T is object, Else otherwise.

Example

type Yes = IfObject<object, 'yes', 'no'>; // 'yes'
type No = IfObject<string, 'yes', 'no'>; // 'no'
type YesOrNo = IfObject<object | string, 'yes', 'no'>; // 'yes' | 'no'